Color

#3f132d

#3f132d
hex#3f132d
rgbrgb(63, 19, 45)
hslhsl(325, 54%, 16%)
oklchoklch(0.268 0.077 347)
Closest name: Nightly Voyager (#391531)Relative luminance 0.0171

Colors that go with #3f132d

Charcoal, Rust and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#133f25

#3b133f · #3f1316

#2c3f13 · #132c3f

Split-complementary

Open in tool →

#163f13 · #133f3b

#3f3b13 · #133f25 · #13163f

Contrast

#3f132d as textRatioAAAA largeAAAFix
Aaon white
15.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #c74390 as the text (4.63:1)
  • AAA: use #d676ae as the text (7.06:1)
  • AA: or shift the background to #8a8a8a (4.53:1)
  • AAA: or shift the background to #b0b0b0 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f132d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#3f132d reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f132d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3f132d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f132d-c19faf-69cb62-2d1f21-f0e9f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md